*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:#f4f7fb;color:#1a202c;line-height:1.6}.app-wrapper{display:flex;flex-direction:column;min-height:100vh}.main-content{flex:1}.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}.btn{padding:.75rem 1.5rem;border-radius:6px;font-weight:600;cursor:pointer;border:none;transition:opacity .2s;text-decoration:none;display:inline-block;text-align:center}.btn:hover{opacity:.9}.btn-primary{background:#0077b6;color:#fff}.btn-secondary{background:#48cae4;color:#fff}.card{background:#fff;border-radius:10px;padding:2rem;box-shadow:0 2px 8px #0000000f}input,select,textarea{width:100%;padding:.75rem;border-radius:6px;border:1px solid #cbd5e1;font-size:1rem}input:focus,select:focus,textarea:focus{outline:none;border-color:#0077b6}label{display:block;margin-bottom:.5rem;font-weight:500}